sedimentary
Sandstone
Clastic Sedimentary Rock
AI-generated identification · may be incorrectMohs hardness 6 to 7, composed mostly of quartz and feldspar grains. Colors range from tan, brown, yellow, red, grey, to pink with a dull to earthy luster.
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Physical properties
Mohs hardness 6 to 7, composed mostly of quartz and feldspar grains. Colors range from tan, brown, yellow, red, grey, to pink with a dull to earthy luster.
Formation & geological history
Formed by the accumulation, compaction, and cementation of mineral particles or rock fragments, typically in deserts, rivers, or beach environments over millions of years.
Uses & applications
Widely used in construction for building facades, paving stones, flagstones, and historically for grinding wheels.
Geological facts
Sandstone often preserves ancient ripple marks and fossilized tracks, providing vital clues about prehistoric environments.
Field identification & locations
Identified by its visible sand-sized grains and gritty texture; commonly found worldwide in sedimentary basins and escarpments.
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